Dusty air near California's shrinking lake may be slowing kids' lung growth

California's Salton Sea used to be a vacation hotspot in the mid-1900s with its sandy beaches and celebrity visitors. But decades of water mismanagement have turned this 340-square-mile lake into a drying disaster zone. As water disappears, it leaves behind a toxic mix of old pesticides, heavy metals and salts buried in the lake bed. When winds sweep across these exposed areas, they carry this contaminated dust straight into nearby neighborhoods. The problem is worst in Imperial County, where farmland soaks up most of the Colorado River's water before it can reach the lake. In 2018, local farmers agreed to send even less water to the Salton Sea to help cities grow. This meant more dry land and, according to estimates, 40 to 80 extra tons of dust blowing through the air every day. Satellite photos show the lake shrinking fast, with new patches of toxic earth appearing each year.Scientists tracked over 700 local kids for years to see how this dust affects their health. Nearly one-fifth of children in northern Imperial Valley have asthma - way more than the national average. Even kids without asthma reported more coughing and wheezing when pollution levels rose. The study found that children living closest to the shrinking lake showed the most damage to their lung growth over time, which could lead to serious breathing problems later in life. Kids are especially vulnerable because their lungs are still developing and they breathe faster than adults. They also spend more time outside playing sports or just hanging out, which means they take in more of the dirty air. The research suggests this dust exposure might be worse than breathing the pollution found near busy California highways. Community groups have been warning about these health issues for years. Now, science is backing up their concerns. With plans for lithium mining in the area and more water likely being diverted, the dust problem could get even worse. The big question is whether future projects will finally address the air quality crisis before another generation of kids grows up with damaged lungs.